Four sided alarm unit with an upper infrared sensor and a lower light emitting diode



FIG. 1 shows a perspective front side view of a four sided alarm illustrating a top light, a middle infrared sensor, and lower light emitting diode array;

FIG. 2 shows a perspective rear-side view illustrating a top panic button, a middle speaker hole grid, and a lower telephone connection panel;

FIG. 3 shows an elevation front view;

FIG. 4 shows an elevation rear view on an opposite side to FIG. 3;

FIG. 5 shows a side elevational view;

FIG. 6 shows a side elevational view on an opposite side to FIG. 5;

FIG. 7 shows a plan top view; and,

FIG. 8 shows a plan bottom view. 

The ornamental design for a four sided alarm unit with an upper infrared sensor and a lower light emitting diode, as shown and described. 